Difference between revisions of "RFT BG 20-6 Smaragd"
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| − | == | + | == Data == |
| − | ''''' RFT | + | ''''' RFT Tape Machine BG 20-6 Smaragd ''''' |
| − | {{ | + | {{navigation}} |
| − | ''' | + | '''General:''' |
| − | * | + | * Manufacturer: [[RFT]] Zwönitz |
| − | * | + | * Model: Smaragd |
| − | * | + | * Year of manufacture: from ca 1956 |
| − | * | + | * Made in: Germany, '''GDR''' |
| − | * | + | * Color: brown |
| − | * | + | * Remote control: yes, electric wired |
| − | * | + | * Power consumption: 250 watts |
| − | * | + | * Dimensions: |
| − | * | + | * Weight approx: 20 kg |
| − | * | + | * New price approx.: 1200 DDR mark |
| − | ''' | + | '''Connections:''' |
| − | * | + | * Number of outputs: |
| − | ** Radio ect. " | + | ** Radio ect. "diode socket" MONO |
| − | ** | + | ** Loudspeaker: 2 Watt |
| − | * | + | * Number of inputs: |
| − | ** | + | ** Microphone |
** Radio | ** Radio | ||
| − | ''' | + | '''Technical data:''' |
| − | * | + | * Tube device: Mono |
| − | * max. | + | * max. coil diameter: 18 cm |
| − | * | + | * drive: 1 motor, pole-changing, large flywheel mass, 1 × belt drive |
| − | * | + | * heads: 1 × erase-/ 1 × sound head, moderate quality |
| − | * | + | * Tracks: half-track mono |
| − | * | + | * Tape speeds: 2 ( 9.5 and 19 cm/s ) |
| − | * | + | * Synchronisation fluctuations: 0.3 |
| − | * | + | * Pitch fluctuations: |
| − | * | + | * Overall frequency response: 40-16,000 Hz at 9.5 cm/s, 40-18,000 Hz at 19 cm/s. |
| − | * | + | * Signal-to-noise ratio: 45 dB |
| − | * | + | * Spurious signal-to-noise ratio: |
| − | * | + | * Distortion: 5% |
| − | * | + | * Equalization: |
| − | * | + | * Crosstalk attenuation: |
| − | * | + | * Cancellation attenuation: max 40 dB |
| − | * | + | * Premagnetization and extinction frequency: |
| − | ''' | + | '''Special features:''' |
| − | * | + | * remote control: yes |
| − | ** | + | ** electromechanical control |
| − | ** | + | ** electric brakes, electric clutches (drive) |
| + | ** display tube EM 11 - magic eye ! | ||
| − | == | + | == Remarks == |
| − | * | + | * problems with modern tape material, min 35 µm BASF~ er (tape tension), sound respectable at 19 cm/s |
| − | * | + | * Other models of the same series: |
| − | == | + | == Pictures == |
| − | [[ | + | [[File:Smaragd_BG_20.jpg|RFT BG 20-6 Smaragd]] |
| − | == | + | == Reports == |
== Links == | == Links == | ||
| − | [[ | + | [[Category:Tape machines]] |
Latest revision as of 04:26, 30 January 2021
Data[edit]
RFT Tape Machine BG 20-6 Smaragd
General:
- Manufacturer: RFT Zwönitz
- Model: Smaragd
- Year of manufacture: from ca 1956
- Made in: Germany, GDR
- Color: brown
- Remote control: yes, electric wired
- Power consumption: 250 watts
- Dimensions:
- Weight approx: 20 kg
- New price approx.: 1200 DDR mark
Connections:
- Number of outputs:
- Radio ect. "diode socket" MONO
- Loudspeaker: 2 Watt
- Number of inputs:
- Microphone
- Radio
Technical data:
- Tube device: Mono
- max. coil diameter: 18 cm
- drive: 1 motor, pole-changing, large flywheel mass, 1 × belt drive
- heads: 1 × erase-/ 1 × sound head, moderate quality
- Tracks: half-track mono
- Tape speeds: 2 ( 9.5 and 19 cm/s )
- Synchronisation fluctuations: 0.3
- Pitch fluctuations:
- Overall frequency response: 40-16,000 Hz at 9.5 cm/s, 40-18,000 Hz at 19 cm/s.
- Signal-to-noise ratio: 45 dB
- Spurious signal-to-noise ratio:
- Distortion: 5%
- Equalization:
- Crosstalk attenuation:
- Cancellation attenuation: max 40 dB
- Premagnetization and extinction frequency:
Special features:
- remote control: yes
- electromechanical control
- electric brakes, electric clutches (drive)
- display tube EM 11 - magic eye !
Remarks[edit]
- problems with modern tape material, min 35 µm BASF~ er (tape tension), sound respectable at 19 cm/s
- Other models of the same series:
Pictures[edit]
